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Altera_Forum
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20 years ago

EPCS can't be THIS slow

I used the CycloneII dev-kit from altera for a project with uCLinux and a NiosII. To save some $$ I'm trying to configure the FPGA from the EPCS64 and load the kernel from the same EPCS64 thus el...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Thank you for the reply,

1. I'm not sure. I use the CycloneII dev-kit with the components as created by Altera. I'm lokking into it...

2. If I understand it correctly I am doing excatly that. The code I used to program the EPCS is: 

sof2flash --input=/cygdrive/t/CSC/Lusdetector_onderzoek_PV04900/03-0032-1_Lusdetector_usb_noFlash/fpga/standard.sof --output=standard.flash --epcs
elf2flash --epcs --after=standard.flash --input=../kits/nios2/bin/eclipse/workspace/kernel_no_flash/build/vmlinux --output=vmlinux.flash --boot=boot_loader_epcs.srec --end=0x3ffffff
nios2-flash-programmer --epcs --sof=altera_nios_dev_board_cyclone_2c35.sof --input=standard.flash
nios2-flash-programmer --epcs --sof=altera_nios_dev_board_cyclone_2c35.sof --input=vmlinux.flash --relocate

from the documentation I thought the bootloader I include when generating the vmlinux.flash file sits in the first 1K (which is directly accesable) and copies the vmlinux to ram and jumps to the start-address.